泛型委托Action中类型参数应该怎么传递？

[sordar]

public class testclass
{
public void testa(Func<String,String> action)
{

Console.WriteLine(action("what?"));
}

public void testall()
{
testa(tc =>
{
return tc;
});

testb<string>(tc =>
{
Console.WriteLine(tc);
});
}

public void testb<T>(Action<T> action)
{
//这里怎么调用action以传入一个string?如action("abc")
}

}

[Forty2]

public void testb<T>(Action<T> action, T arg)

[sordar]

Thanks, I just write as following: public void testb<T>(Func<T, T> action, T testValue) { action(testValue); } public void testall() { testa(tc => { return tc; }); testb<string>(tc => { return tc; }, "abc"); }